>> pelley: tonight, 42 plus 44. for the first time, one t tiident nominates another-- but as the democrats bring out a star, storm clouds move in and shut tens of thousands out of the convention's grand finale. omports from byron pitts, norah o'donnell and bob schieffer. anna werner on a big jump in jses of west nile. it could be this country's worst outbreak of the virus ever. armen keteyian reports the f.l.l. is pledging millions medical research as a new study finds football players have a much higher risk of dying from brain disorders. and space walking astronauts use rdtoothbrush to repair a space asation while the sun shows a flair for the dramatic. captioning sponsored by cbs

this is the "cbs evening news" with scott pelley reporting tonight from the democratic national convention. ha pelley: good evening, bad weather scuttled the first day of the republican convention and now rain is forcing the democrats to scrap what they moped would be a spectacular s aish here. they planned to move out of this rolia tomorrow to stage the t esident's acceptance speech outdoors in the massive stadium that is home to the carolina panthers. hut president obama will be on the stage behind me instead in a much smaller forum which leaves no room for tens of thousands of party volunteers. we have bob schieffer and our campaign 2012 reporting team in charlotte and we'll start tonight with byron pitts. byron? >> reporter: well, scott, according to the d.n.c., 65,000 people would have filled this stadium. another 19,000 on the waiting list.

but tonight all that has changed. late today work crews were stripping down this set at bank of america stadium for what was en have been both politically hed visually the most important moment at this year's democratic convention. some 65,000 people were supposed to pack this outdoor football stadium-- a scene purposely ll iniscent of the 2008 honvention in denver. cot mother nature had other plans. eith severe thunderstorms .appening almost every night this week and still in the forecast for thursday evening, d.n.c. communications director brad woodhouse says campaign officials did not want to take the safety risk. >> there are things outside of your control, you know, i mean, this isn't a clint eastwood eituation. dis is actually outside of our control. >> reporter: there was also a risk of embarrassment. if thousands were stuck outside in a downpour. eer volunteers who've worked for the campaign in order to earn a ticket there was huge eporppointment. >> our tickets i've been keeping

in a secure location in my jewelry box. >> reporter: for stacey tillman of harrisburg, north carolina, suburb of charlotte, these tickets meant the chance of a lifetime. like thousands of others two .eeks ago she waited in long lines for nearly four hours in 90-degree heat for a chance at a ticket to hear the president speak in person. what was your reaction when you heard the news? >> disappointing but at the same ilme the weather's been a concern all week, we've been s tching it and i think that it was probably a good decision. pa reporter: david miller of west virginia says he'll keep his ticket as a souvenir and do as the campaign recommended and go to a viewing party tomorrow night. atchhether we get to see him live or we get together as a community and get to watch him in our homes together, the volunteers really support the president no matter what. >> reporter: the president will now stand at the same podium as his wife in every other speaker sp this convention. now that president obama will w eak indoors, the fireworks show has been canceled and there will be no big balloon drop sh indoors. scott, organizers say there simply isn't enough time now to pull it together. t> pelley: byron, thanks very

much. in highlight tonight in this hall will be a speech by president bill clinton. the first time a former ofsident has placed the name of an incumbent in nomination. you can bet that mr. clinton will recall how the federal cdget was balanced for a time in his second term. earnh o'donnell, cohost of cbs "this morning," has been talking asther sources and has a preview mi the speech. norah? >> reporter: that's right, scott, we've learned president bill clinton is taking this down to the wire, writing this speech diuntil the very last minute in ice waso try and draw a direct line between the policies of bill clinton and the proposals of inrack obama to try and argue that president obama can return america to the economic heydays

of the 1990s when the unemployment rate under clinton ins just 4.1%. blicanill clinton is going to sy the most important question is what kind of country do you is t to live in? if you want a "you're on your own winner take all society" you should support the republican ticket. if you want a country of shared prosperity and shared responsibility, we're all in this together society, you should vote for obama and joe biden. bw, obama's advisors say they don't think there's any better democrat in this country to make the case against mitt romney and his fiscal policies. this is a message that is aimed particularly at working class voters who favor mitt romney over obama by about 14 points. so look for mr. clinton to talk about when he was president that he actually raised taxes in 1993 despite the opposition of every republican in congress and a lot of criticism that it would sink the economy, bill clinton is hing to say tonight his own tax

increases led to the greatest economic expansion in decades and the and the creation of 23 million new jobs. >> pelley: norah, thanks. president obama is here in charlotte. he flew in after his departure today was delayed by the weather mhat is bedeviling politics. one of the things that these conventions do is write the party platform-- a symbolic document that is immediately forgotten. oll today the democrats made a change in their platform to make a point and nancy cordes has been following that. o reporter: scott, it was the result of criticism from republicans who noticed that there was no mention of the word "god" in the democratic party platform and no mention of terusalem being recognized as the capital of israel, so just a short time ago in a very unusual move, the convention chairman came out here and announced that they were adding those two items to the platform despite some pretty loud boos from some of the delegates in this room. yampaign officials say the president personally intervened here, they say he has always believed that jerusalem is the capital of israel but obviously, uslyt, this was a kind of abarrassing episode they're trying to put behind them now. >> pelley: thanks, nancy, cbs news live coverage of the ovmocratic national convention, including former president

clinton's speech begins tonight at 10:00 eastern time, that's 7:00 in the west. timver is president after january 20 will have to deal with syria. today syria's neighbor, turkey, thid the assad dictatorship is ssentially a terrorist organization. ristsyrian regime has been trying to crush a popular rebellion for nearly 18 months. civilians are taking the worst nthst. holly williams has been looking at the refugee crisis and at some recent victories by the rebels. >> reporter: for the syrian rebels, this is a trophy worth showing off: one of the regime's fighter jets. video posted online appears to show the aftermath of a crash and the pilot who lost his life. the rebels say they shot down the big 21 jet themselves along alongnother warplane and a aelicopter. if that's true, it's important because in syria's civil war the isernment is relying on its control of the air.

iae syrian regime still has nearly all of the heavy weapons on its side-- like this tank. this video posted on the internet seems to show government soldiers firing on a residential area and then celebrating after hitting an apartment building. .he rebels appear to be making some gains against the regime, but the assad government continues to bombard its own people and here in refugee camp caturkey, r people who have been on the receiving end of those attacks. one of them is abdul kader hamo. he told us he fled here from his home in the city of aleppo after the regime shelled his neighborhood. five of his family have been tilled, he said, one of his sons is still fighting for the rebels. viter nearly 18 months, syria's lookl war looks increasingly like a stalemate, and that's no comfort at all for the people

o o have lost their homes and their loved ones. >> pelley: holly williams is yoining us from just across the border inside turkey and, holly, i wonder, what are the turks expecting in terms of refugees tu? >> reporter: well, there are epready 80,000 syrian refugees living in camps in turkey but there are hundreds of more people flooding across the border everyday and that's why the turkish government is building three new camps to accommodate those new arrivals. >> pelley: you know, it's usually the case that most refugees are women and children. i wonder what the conditions are like in the camps. >> conditions inside actually are pretty good. there's shelter, food and water, there are even medical clinics and schools. but when you talk to the syrian refugees inside the camps they really want to go home. the elderly man who you saw in our report just now told us that he would happily live on onions and bread as long as he could do it in his old home back in syria. >> pelley: well, that may be a distant hope, holly, thank you very much. we've been watching the spread

of west nile virus in this country and today we found out the number of cases jumped 25% 25er the last week. there have been nearly 2,000 ses s in 48 states. 87 people have died, an increase of 32% since last week. from texas, anna werner says this could be a record outbreak. >> it was just miserable, you know? fever and chills and headaches, nausea. i mean, you name it. it was miserable. >> reporter: 42-year-old kataryn deville was infected with west nile virus in july. she wound up with meningitis and encephalitis. >> this virus has taken more than a month of my life, actually. i was sick for almost the whole month of august. >> reporter: west nile virus is spread by mosquitos. it's killed at least 35 people

in texas. the state has recorded nearly 900 cases-- that's 45% of all west nile cases in the united states. aerial pesticide spraying last month in and around dallas dramatically reduced the mosquito population. .n july, half of the mosquitos tested positive for west nile. now it's just 5%. but doctors believe the number l reported cases will increase acause weeks can pass before gople infected with west nile develop serious symptoms. dr. beth bell of the centers for disease control and prevention expects the outbreak to last rntil october. >> it takes a little time for people after they get sick to go to the doctor to get the blood test.

and what we're counting are cases of illness which occurred several weeks ago. >> reporter: scott, the c.d.c. estimates that thousands more people have suffered some degree of illness but most of them never went to a doctor. >> pelley: thanks, anna. we got another important medical study today on the dangers of pro-football as the n.f.l. kicks off its new season tonight. this study, published today in ted t medical journal neurology" looks at what a career of collisions can do to the brain. here's armen keteyian. >> reporter: as an n.f.l. fullback for eight seasons in the 1990s, kevin turner smashed head first into linemen and linebackers up to 20 times a game. >> sometimes you ear a thdshield and sometimes you're a bug. that's just the nature of that position. >> reporter: today at 43, the father of three lives a very different life. in may, 2010, he was diagnosed with the brain disease a.l.s., better known as lou gehrig's hisease for which there is no cure. >> never did i think that my mental or cognitive abilities would be impaired by playing this game. >> reporter: turner's story and ooday's study add to a growing owdy of evidence linking pro- football to long-term brain injuries.

the study included more than 3,400 n.f.l. players who played at least five seasons between 1959 and 1988. and reviewing death certificates, researchers found the players were three times more likely to die from neurodegenerative diseases such as alzehimer's disease and a.l.s. than the general u.s. population. despite its relatively small sample size, dr. brian applebee h the cleveland clinic's center for brain health called the ttudy well done and important. >> what we have to look at now ns what is it about these traumatic brain injuries that spark the fire of neurodegenerative illnesses later on in life. >> reporter: last may, all-time great junior seau committed suicide at 43. seau's brain tissue is now being studied at the national institute's of health. s, the last two years, more than 3,300 former n.f.l. players have filed concussion-related lawsuits against the league. in response, the league has stepped up efforts to address head injuries. it has strengthened rules to

prevent unnecessary hits, increased medical and financial assistance to retired players. and today announced an unprecedented $30 million in unrestricted funding for medical research into brain injuries. it's an effort to help keep more men caught up in these crashes from following in the footsteps of kevin turner. in a statement today, the n.f.l. said the study underscore it is continuing need to invest in research, education, and advocacy. we remain committed to do all that we can do to promote player health and safety. heott? >> pelley: thanks, armen. our convention coverage continues with a look at what both candidates would do to put americans back to work. and who needs a wrench when you have a toothbrush? two astronauts improvise when the "cbs evening news" continues. ú

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back at work? >> reporter: tim perry is a labor statistic again. for the second time in the past four years he's out of work. >> it just seems like there's so many jobs that i apply for and hear nothing from them. >> reporter: the 44-year-old lost his first job as a forklift operator at the wilmington, ohio, facility of airborne express in 2008. >> felt like the world kind of ended. >> reporter: perry was one of some 8,000 workers let go when d.h.l. and airborne shut the facility. he'd spent 20 years-- more than half his life-- working there. what did you think your job prospects were at this point? >> i didn't know what i was going to do. i planned on retiring there. >> reporter: retrained as a heating and air conditioning technician, perry found work with this dayton company. how did you feel when you got that job? >> relieved. i felt real good about myself, again. >> reporter: but the pay was lower. perry as a wife and four children to support-- two with type one diabetes. so this year when c.s.x. offered

him a train conductor's job with first-class health insurance he took it. then last month just 19 weeks after he'd started he was laid off again. >> it came as a major shock after leaving a job. >> reporter: both presidential candidates promise to improve the job picture. >> we've got more good jobs to create. >> reporter: president obama promises to lower the top corporate tax rate from 35% to 28% to give businesses more money to hire. he's also pledged to put $3 billion into job retraining to help 22 million workers. >> we're going to make it happen. we're going to create those jobs. >> reporter: mitt romney would cut the corporate tax rate from 35% to 25% as part of a plan to create 20 million jobs in the next four years. he supports job retrain bug would shift the burden to states and private companies. it's not getting easier, is it?

>> no, seems like it's getting harder. >> reporter: tim perry returned to the heating and air conditioning company he left. looking for his job back. i feel like i'm a great candidate for a job if somebody would take a chance on me they will never regret it. >> reporter: like tim perry, nearly 13 million americans are waiting for that same chance. anthony mason, cbs news, waynesville, ohio. >> pelley: we got a spectacular look at the power of the sun today and we'll have it just ahead. [ male announcer ] one try can change everything.

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>> pelley: nasa sent us some remarkable pictures today of a solar flare, a massive explosion on the surface of the sun last friday shot a tongue of fire half a million miles into space. that sent a cloud of highly charged particles toward the earth and when they hit the atmosphere on monday the result was a vivid aurora, also known as the northern lights. outside the international space station today two astronauts took a page out of macgyver's play book. they used improvised tools including a toothbrush and pipe cleaner to free a stuck bolt that had prevented them from installing a power unit. it took nearly five hours, but they got the unit up and running and restored full power to the station. this is a special anniversary at

nasa, 35 years ago today. the "voyager i" spacecraft lifted off for jupiter, saturn and beyond. it's now 11 billion niles from earth and still sending back signals. it will soon become the first spacecraft to leave our solar system. something caught bob schieffer's ear at this convention today and he'll have a word about what he heard next. oh no, not a migraine now. try this... bayer?

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>> these conventions have become largely at a marathon of speeches, some good, some bad, most destined to be forgotten but bob schieffer tells us that he saw something yesterday that he liked? >> i really did, whether it comes from a democrat or republican, i just love a good political speech but i was beginning to think that our modern politicians have forgotten how to give them. until last night. michelle obama wowed the crowd with a speech about her husband that brought in remarkable insight about life in the white house. she said she had learned the presidency does not change

person, it reveals them. she actually wrote much of the speech, which is in itself a refreshing thing. but julien castro delivered a kind of speech that we used to call a barn burner, my favorite line, he said " you cannot be pro-business unless you are pro education ". it is about time someone said that. everyone is expecting a big speech tonight from bill clinton, but he is going to have to go some to beat what we heard last night. >> thank you very much, that is the cbs evening news for tonight. we will be back at 7:00 with live coverage of the democratic national convention and cbs this morning will have the very latest first inninthing tomorrow. i'm scott pelly, see you soon. >> good evening i am alan martin. >> i am dana king and we're

finding out more about the suspect that shot and gravely wounded a chp officer during a traffic stop on 680. christopher lacy got his master's and surfaces of state and was a software engineer that worked in the bay area. joe vasquez begins team coverage with a profile that investigators are trying to put together, on the suspect. >> we have been told that he pretty much to himself, he is a loner. >> according to an on-line profile, that he posted on his own website, he earned his living as a software engineer. >> last year he moved to northern california town near chico and neighbors took these pictures as investigators moved into his home last night, kick in his back door and busted out windows, there were looking for crews. clues. investigators seized six computers, s